Spray nozzle



iaithv 10, i925 I' 11,529,531

G. L. YOUNG SPRAY NozZLE I 'Filed Sept.\18. 1924 Rpm-' Patented Mar. l0,1925.

UNITED STATES GEORGE LAING YDING, OF

SPRAY Application filed September To all whom t may (son cem Ireland,and residing atv22 lloseberry,21W@- nue7 South Shields, in the county ofDur-N ham, England, have invented certain new and useful improvements inor Relating to Spray Nozzles, of which the following` is aspecification.

This invention relates to multiple spray nozzles such as are used forexample in liquid fuel burners for furnaces, in carburettors forinternal combustion engines, or in sprays for disinfectants or any otherpurposes, and has for its main object to ensure better atomization andthereby increased combustion in the case of liquid fuel, but also toenhance efficiency by increasing the area over which the atomized liquidis delivered, while incidentally the invention aims at a constructionsimplifying the manufacture of the nozzle and enabling its adaption tovarying qualities of consistencies of the liquid by ready exchange ofcertain parts.

The accompanying drawings show by way of examples constructions ofmultiple spray nozzles embodying this invention.

Figures l and 2 show in front elevation with part of the cap removed andin axial section respectively, a multiple spray nozzle, having the sprayelements arranged parallel to each other, while Figures 3 and 4 aresimilar views of a multiple spray nozzle having the spray elementsarranged to deliver diverging sprays.

The multiple spray nozzle includes a body 1a provided with a pluralityof spray elements each of which consists of a circular recess 5constituting an atomizing chamber with preferably a forwardly projectingobtusely conical bottom. The recess is closed at its forward end by adisc 7 in the centre of which the delivery orifice 8 is arranged injuxtaposition to the apex of said conical bottom. The recess 5 and disc7 thus form a small chamber which has its dept-h decreasing from theperiphery to the center and which is in communication with the chamberla by means of holes 11 drilled tangentially in relation to the wallsand an- PATENT cerros.

NO'ZZLE.

is, i924. seran no. 738,527.

, gula-rly in relation to the axis of the atomiz- Beit known that I,GEORGE LAING Yonne,y aV subject of the King of Great Britain and ing`chamber 5,.

The liquid passes by way of the passages ll into the chamber 5, where,striking at an angle the disc 7 adjacent to the walls of 55 chamber 5,it is atoniized and by being deflected caused to vwhirl round theuaxisof the burner. @wing to the chamber 5 being centrally restricted indepth by its projecting cone-shaped bottom 6 the liquid is guided 60towards and into the delivery orifice 8 and on emerging still whirlingtherefrom is thrown at a tangent against the sides of the flared mouth10 and deflected thereby.

By causing the whirling liquid to issue from the delivery orifice in awhirling motion, a very wide and eicient, hitherto unattainabledistribution of the liquid is effected. t

The nozzle body la (Figures 1 and 2) is mounted by means of the plug 3on the supply tube 2. It is of sufficient diameter to accommodate thedesired number of spray elements (for example seven as shown) spaced soas to cover the desired area.

In the face end of the nozzle body 1a are arranged a plurality ofrecesses 5 each communicating individually by passages 1l with thecommon supply chamber 4a and constructed and formed as previouslydescribed. A disc 7 in which the delivery orilice 8 is formed isprovided for each of the recesses 5, the said discs being locked inposition by a common cap 9a provided with a plurality of flaredapertures l() adapted to register with S5 the several atomizing chambers5. The cap 9al may be screwed on to or be secured to the nozzle body bymeans of screws 12 when in order to ensure correct registering one ormore dowel pins 13 may be provided (Figure 1).

While in the example just described the face of the nozzle is arrangedatright angles to its axis and the spray elements are parallel thereto,Figures 3 and 4L show a similar o5 arrangement in which, however, thespray elements are so disposed that the sprays are delivered indiverging directions.

For this purpose the face of the nozzle body 1b is preferably in theform of a truncated cone as shown or it may be of spherical formation ifdesired.

As a modication the discs 7 may, as shown, be fitted into recessesprovided in the cap 9F (Figure 4).

The cap 9b is shown as being secured to the nozzle body by means ofbolts let.

The effect of the arrangement described on the flow of the liquid is asfollows The liquid is forced through theV helical passages 11 into eachchamber 5 formed in the face ofthe nozzle body and strikes under anangle against the disc so that it is, in being atomized, whirled rounduntil7 by rising spiral-like on the conical bottom of the chambertowards the delivery orifice 8, itl is forced throuoh this orifice in awhirling C b motion, so that o-n issuing therefrom it will be thrown ata tangent against the flaring nozzle mouth and by defiection be spreadover a wide area. It will be understood that thus the angle at which thenozzle mouth is flared, determines the spread of the sprays7 or in otherWords the angularity or extent of the cone of sprays.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is A spray nozzle comprising a nozzle bodyhaving a plurality of circular recesses provided with conical bottomsand constituting atomizing chambers, a disc covering the open end ofeach of said chambers and each disc having an orifice therein situatedin juxtaposition to the apex of its respective conical bottoniy a capcommon to all of said discs securing them in position on the body, saidcap being provided with a plurality of flaring mouths cooperating withsaid discs, and means for supplying fluid to said chambers in atangential swirl.

In testimo-ny whereof l have signed my naine to this specification.

GEORGE LAING YOUNG,

